Sensorless start of synchronous machine

Details Sensorless start of synchronous machine Sensorless start of synchronous machine

1993-05-12

1994-11-08

Peckman, Kristine L.

Electricity: single generator systems

With physical starting and/or stopping of the generator

318721, 318701, F02N 1104

Patent

active

053630327

ABSTRACT:
A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an exciter field winding rotatable with respect to the exciter armature winding, and a main generator portion having a main generator armature winding and a main generator field winding rotatable with respect to the main generator armature winding. An inverter is coupled to supply power to the main generator portion armature winding via a DC link during the starting mode of operation, and an inverter controller includes a position sensing circuit that generates a rotor position signal based upon the differential reluctance between pairs of phase windings in the main generator portion armature winding.

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